Merge pull request #3724 from bunnei/fix-unicorn
core: arm_unicorn: Fix interpret fallback by temporarily mapping instruction page.
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commit
48b670d132
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@ -11,6 +11,7 @@
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#include "core/core_timing.h"
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#include "core/hle/kernel/scheduler.h"
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#include "core/hle/kernel/svc.h"
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#include "core/memory.h"
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namespace Core {
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@ -171,7 +172,17 @@ MICROPROFILE_DEFINE(ARM_Jit_Unicorn, "ARM JIT", "Unicorn", MP_RGB(255, 64, 64));
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void ARM_Unicorn::ExecuteInstructions(std::size_t num_instructions) {
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MICROPROFILE_SCOPE(ARM_Jit_Unicorn);
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// Temporarily map the code page for Unicorn
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u64 map_addr{GetPC() & ~Memory::PAGE_MASK};
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std::vector<u8> page_buffer(Memory::PAGE_SIZE);
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system.Memory().ReadBlock(map_addr, page_buffer.data(), page_buffer.size());
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CHECKED(uc_mem_map_ptr(uc, map_addr, page_buffer.size(),
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UC_PROT_READ | UC_PROT_WRITE | UC_PROT_EXEC, page_buffer.data()));
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CHECKED(uc_emu_start(uc, GetPC(), 1ULL << 63, 0, num_instructions));
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CHECKED(uc_mem_unmap(uc, map_addr, page_buffer.size()));
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system.CoreTiming().AddTicks(num_instructions);
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if (GDBStub::IsServerEnabled()) {
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if (last_bkpt_hit && last_bkpt.type == GDBStub::BreakpointType::Execute) {
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